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    <title>Apache module mod_browser</title>
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    <h1 align="CENTER">Module mod_browser</h1>
    This module is contained in the <code>mod_browser.c</code>
    file, and is compiled in by default. It provides for setting
    environment variables based on the browser. This module is part
    of Apache 1.2.* only. From Apache 1.3 onwards <code><a
    href="mod_setenvif.html">mod_setenvif</a></code> provides the
    functionality of this module. 

    <h2>Summary</h2>

    <p>This module allows you to set environment variables based on
    the name of the browser accessing your document, based on the
    <code>User-Agent</code> header field. This is especially useful
    when combined with a conditional HTML language such as <a
    href="mod_include.html">XSSI</a> or PHP, and can provide for
    simple browser-based negotiation of HTML features.</p>

    <h2>Directives</h2>

    <ul>
      <li><a href="#browsermatch">BrowserMatch</a></li>

      <li><a href="#browsermatchnocase">BrowserMatchNoCase</a></li>
    </ul>
    <hr />

    <h2><a id="browsermatch"
    name="browsermatch">BrowserMatch</a></h2>
    <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> BrowserMatch <em>regex
    attr1 attr2...</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_browser<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> Apache 1.2 and
    above 

    <p>The BrowserMatch directive defines environment variables
    based on the User-Agent header. The first argument should be a
    POSIX.2 extended regular expression (similar to an egrep-style
    regex). The rest of the arguments give names of variables to
    set. These take the form of either "<code>varname</code>",
    "<code>!varname</code>" or "<code>varname=value</code>". In the
    first form, the value will be set to "1". The second will
    remove the given variable if already defined, and the third
    will set the variable to the value given by <code>value</code>.
    If a User-Agent string matches more than one entry, they will
    be merged. Entries are processed in the order they appear, and
    later entries can override earlier ones.</p>

    <p>For example:</p>
<pre>
    BrowserMatch ^Mozilla forms jpeg=yes browser=netscape
    BrowserMatch "^Mozilla/[2-3]" tables agif frames javascript
    BrowserMatch MSIE !javascript
</pre>

    <h2><a id="browsermatchnocase"
    name="browsermatchnocase">BrowserMatchNoCase</a></h2>
    <a href="directive-dict.html#Syntax"
    rel="Help"><strong>Syntax:</strong></a> BrowserMatchNoCase
    <em>regex attr1 attr2...</em><br />
     <a href="directive-dict.html#Context"
    rel="Help"><strong>Context:</strong></a> server config<br />
     <a href="directive-dict.html#Status"
    rel="Help"><strong>Status:</strong></a> base<br />
     <a href="directive-dict.html#Module"
    rel="Help"><strong>Module:</strong></a> mod_browser<br />
     <a href="directive-dict.html#Compatibility"
    rel="Help"><strong>Compatibility:</strong></a> Apache 1.2 and
    above 

    <p>The <code>BrowserMatchNoCase</code> directive is
    semantically identical to the <a
    href="#browsermatch"><code>BrowserMatch</code></a> directive.
    However, it provides for case-insensitive matching. For
    example:</p>
<pre>
    BrowserMatchNoCase mac platform=macintosh
    BrowserMatchNoCase win platform=windows
</pre>

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